Flights MX399 varies Tu Th Su
Direct flights from Jacksonville (JAX) to Raleigh/Durham (RDU): 3 nonstop departures observed each week across 1 airline. 50% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 25 minutes late. No cancellations were recorded across the 6 tracked flights. The nonstop covers 657 km, an estimated 1 hour 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Jacksonville and Raleigh/Durham. Updated 10 September 2026 at 19:48 UTC.
of the last 6 operated JAX → RDU flights arrived within 15 minutes
Median arrival delay is +25 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at JAX: 46% odds of a 15+ minute delay and around +7 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Jacksonville to Raleigh/Durham route actually runs
Pro Flight Search records official board updates for nonstop JAX to RDU flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — Jacksonville (JAX) to Raleigh/Durham (RDU) route reliability, measured from operated flights on official airport boards.
https://proflightsearch.com/search-flights/JAX-RDU
JAX to RDU questions
Is JAX–RDU running on time right now?
Smooth skies ahead. The departure side at JAX is the weaker end, route health score 89/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from JAX to RDU?
Great-circle distance is 657 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 76–86 min gate-to-gate on this route.
How often does JAX–RDU fly?
Breeze Airways runs the route with about 3 flights a week (sun, tue, thu). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at JAX and arrival-side delay at RDU, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.